Tire-spreader



E. A. RAYNAUD.

TIRE SPREADER. I APPLICATION men FEB-25. 1920.

Patented Apr. 19, 1921.

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. Spreaders, of which'the'iollowing is a-specish ustable means whereby gaged between the ES PATENT OFFER;

ERNEST A. RAYNAUD, OF SAN DIEGO, CALIFORNIA, ASSIGNOROF ONE-HALF TO JOHN W. PERKINS, OF DIEGO, CALIFORNIA.

UNITED s'rAT TIRE-SPREADER.

Specification of Letters Patent.

1,375,965. Patented Apr. 19, 1921.

Application filed February 25, 1920. Serial No. 361,184.

This post is seated at To all whom it may concern:

Be it known that I, ERNEST A. RAYNAUD, citizenof the United States, residing at San Diego, in the county of San D ego and State of California, have invented certam new and useful Improvements in Tireits upper end against a screw or other a fication.

This invention relates to an improved tire spreader and has as one of its principalobjects to provide a device whereby the sldes of a pneumatic tire casing may be readily th spread apart so that accessmay be easily had to the interior of thecasing.

heinvention has as a further object to provide a device which may be readily posith tioned along the beads of a tire therebetween abl and then operated for spreading the sides of the tire as desired. h d the invention has as a still further toprovide a device which will not mutilate or abrade the beads of the tire and wherein the device will be providedwith adthe spreading of the sides of the tire may be varied.

Other and incidental objects will appear hereinafter.

In the drawings:

Figure 1 is a perspective view showing the manner in which the device is initially enpneumatic tire casing 21. As is well known, beads of a tire prior to the large sized tlre casings are very stiff, operating the device for spreading the sides thls being particularly true of truck casof the tire, the portion of the tire Illustrated lugs, and when repairing such a casing it being of conventional construction, as, heretofore, proven extremely difficult ig. 2 is a fragmentary sectional view and laborious to spread the sides of thecasshowing the device operated for spreading 'ing in order to gain access to theinterior the sides of'the tire, and thereof. In a great many instances this i Fig. 3 is a fragmentary-perspective view showing the outer end portion of the shank of the device with the spaced 'aws thereon.

In carrying the invention into effect, I employ a metal shank 10- which is provided with a laterall directed lower end portion or arm 11.- his arm is longitudinally curved to conform more or less to the inner. circumference of a tire casing and mounted upon the arm at its free end is a guide plate 12 riveted or otherwise secured to the lower face of the arm. The guide plate overhangs the arm considerably at its side edges and is bent to provide laterally directed guide wings inclining outwardly and upwardly from the arm. Mounted upon the outer end portion of the arm beneath the guide plate is a fixed post 13 depending from the arm.

end portlon of the arm is a longitudinal slot 16 and ad ustable longitudinally of this slot is the post 17 employed. This post, like the present invention, therefore, provide a device whereby the sides mg may be easily flexed apart. Initially the arm 11 of the tool is, as suggested in Fig. 1, disposed within the slot between the beads of the casing when the post 13 and roller 19 will, of course, roject through said slot while the guide plate 12 will contact with the outer faces of the'beads for supporting the free end of the arm. The shank 10 may now be swung for shifting the arm to a position extending, as shown in Fi 2, transversely with respect to the tire w en the post the tire beadswhile the roller 19 will coact with the other of said beads for spreading the sides of the tire. In this connection, it

of a cas- 95 ing, and a laterally projecting will be observed that since the wings of the plate slope upwardly away from the arm,

the free end drop downbetween the sition lying practically faces thereof. Consequently, when the tool shank is swung for spreading the sides of the tire, as just indicated, any tendency of the post 13 to ride out of the tire will be counteracted since the biting edge 15 of the post will be brought into contact with the adjacent side of the tire below the bead thereon. As SOOiIl as this biting edge of the post is thus brought into engagement with the adjacent side of the tire, the post 13 will be held stationary so that as the movement of the shank is continued, the arm 11 will rock about the axis of the post as a center so that the roller 19 will travel along the other head of the tire for spreading the sides of the tire. The groove of the roller will, as will be seen, coact with this latter bead of the tire for sustaining the shank above said bead so ,that the shank may be freely rocked. For varying the spreading of the sides of the tire, it is simply necessary to position 16 for varying the distance between the roller 19 and the post 13 and, as will be appreciated, the device may be moved around the inner circumference of the tire and operated at different points theralong, so that the sides of the tire may be spread as it is desired t0! weik therebetween. I accordingly provide'a particularly effective device for the purpose set forth and a device which may be readily employed in connection with substantially any conventional type of pneumatic tire casing.

Having thus described the invention, what is claimed as new is:

1. A tire spreader including a shank, spaced posts projecting from the shank and engageable between the beads of a tire casguide plate shank adjacent the outermost of the arm will be permitted to tire beads to a poflush with the outer carried by the of said posts.

the post '17 within the slot 2. A tire spreader including a shank, spaced posts projecting from the shank and engageable between the beads of a tire casing, and a guide plate carried by the shank adjacent the outermost of said posts, the guide plate being provided with laterally directed wings overhanging the shank an sloping upwardly awaytherefrom.

3.A tire spreader including a shank directed laterally at its lower end portion to rovide an arm, a post fixed to the outer end ortion of said arm and held against rotation thereon, the post being flared toward its lower end and provided with a biting edge, a second post depending from the inner end portion of the arm, and a roller journaled upon the latter post and provided with a tire bead receiving groove.

4. A. tire spreader including a shank, a roller carried thereby, and a post fixed against rotation upon the shank in space relation tox said roller whereby the post and roller may be inserted between the beads of a tire casing and the post engaged with one of said beads to act as. a pivot supporting the shank for swinging movement to ride the roller against the other of said beads to a position where the post and roller lie in a plane transversely of the casing for spreading the sides of the casing. v

5. A tire spreader including a shank having an angularly disposed portion providing an arm, a roller carried by said arm near the inner end thereof, and against rotation upon the arm near its outer end whereby the post and roller may be inserted between the beads of a tire casing and the'post engaged with one of saidbeads to act as a pivot supporting swinging movement to ride the roller against the other of said beads to a position where the post and roller lie in a plane transversely of the casing for spreading the sides of the casing. I

In testimony whereof I affix my signature.

ERNEST A. RAYNAUD. [n s.]

a post fixed A 

